Ok, here is a McMaster-Carr fix. Part 96005217. It is listed as a 1 3/8″ hole, but the ID is 1″
After a couple of failed measurement attempts I was able to find a 1″ ID grommet for 1/16″ sheet metal.
With much coaxing, prodding and levering, along with some words from the dark part of my vocabulary, I was able to get the grommet in the oval opening.
The plug wires are a tight fit but you can trim the slot a little if needed. It is heavier than the original and I might try the next size down but this eliminates the raw edges for about $1 per opening.